What is an index?

a page at the front of a book that lists units and chapters with their page numbers
an alphabetical list of all topics covered in a book and the pages on which they can be found
an alphabetical list of all the specialized words and terms used in the book and their definitions
a statement of the author’s purpose in writing the book, which may include suggestions for using the book

answer: group ii. when the root is a full word except for a final e, the forms usually are spelled with -able.

explanation: the word will be deplorable. -able will be used with the word 'deplore-'. the group ii is when the root is a full word except for a final e, the forms usually are spelled with -able is used for the word deplore- because the word deplore- has 'e' at the end of it.

(the answer is d)

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